An eye for an eye only succeeds in making the whole world blind.

The future depends on what we do in the present.

It is not by accident that the happiest people are those who make a conscious effort to live useful lives. Their happiness, of course, is not a shallow exhilaration where life is one continuos intoxicating party. Rather, their happiness is a deep sense of inner peace that comes when they believe their lives have meaning and that they are making a difference for good in the world.